fix(errata): workaround for Cortex-A78 erratum 2376745
Cortex-A78 erratum 2376745 is a cat B erratum that applies to revisions
r0p0 - r1p2 and is still open. The workaround is to set bit[0] of
CPUACTLR2 which will force PLDW/PFRM ST to behave like PLD/PRFM LD and
not cause invalidation to other PE caches.
SDEN can be found here:
https://developer.arm.com/documentation/SDEN1401784
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I6f1a3a7d613c5ed182a7028f912e0f6ae3aa7f98
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index 462ca9d..6a3bc17 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -333,6 +333,10 @@
# present in r0p0 as well but there is no workaround for that revision.
ERRATA_A78_2242635 ?=0
+# Flag to apply erratum 2376745 workaround during reset. This erratum applies
+# to revisions r0p0, r1p0, r1p1, and r1p2 of the A78 cpu. It is still open.
+ERRATA_A78_2376745 ?=0
+
# Flag to apply erratum 1941500 workaround during reset. This erratum applies
# to revisions r0p0 and r0p1 of the A78 AE cpu. It is still open.
ERRATA_A78_AE_1941500 ?=0
@@ -842,6 +846,10 @@
$(eval $(call assert_boolean,ERRATA_A78_2242635))
$(eval $(call add_define,ERRATA_A78_2242635))
+# Process ERRATA_A78_2376745 flag
+$(eval $(call assert_boolean,ERRATA_A78_2376745))
+$(eval $(call add_define,ERRATA_A78_2376745))
+
# Process ERRATA_A78_AE_1941500 flag
$(eval $(call assert_boolean,ERRATA_A78_AE_1941500))
$(eval $(call add_define,ERRATA_A78_AE_1941500))